BUR #39441 has been approved by @nonamethanks.
create implication ultraman_(shin) -> ultraman
create implication kamen_rider_1_(shin) -> kamen_rider_1
create implication kamen_rider_2_(shin) -> kamen_rider_2
create implication ghidorah_(shin) -> king_ghidorah
Shin Godzilla's chartag, Godzilla (Shin), implies Godzilla per forum #259180 as a result of Godzilla serving as an umbrella chartag for all the various iterations Godzilla had had over the years (though Shin Godzilla's other forms don't imply him due to having visual contrasts). In contrast, Shin Ultraman and Shin Kamen Rider have a more awkward relationship with Ultraman and Kamen Rider, where the titular Ultraman (Shin) and Kamen Rider 1 (Shin) don't look too different from Ultraman and Kamen Rider 1, whom themselves didn't have many visual changes after their designs settled by the end of each respective show (and the same goes with Kamen Rider 2 (Shin) and Kamen Rider 2).
As a result, given the apperance similarity, it might make sense to imply the Shin versions to their original counterparts (and also enforce that, when the Shin chartags are used, unless needed, the original series copytag shouldn't be tagged - generally, some gardening might be needed).
The other Shin character tags, Zoffy (Shin), Zetton (Shin), and Hiromi (Shin), different from their original counterparts so much that implications don't seem as needed. Ghidorah (Shin) should be implied though, per forum #211844 with its MonsterVerse counterpart.